linux-kernel - Re: [PATCH printk v4 04/17] printk: nbcon: Add context to usable() and emit()

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Message-ID: <Zs3EtcYLJgOeZrTs@pathway.suse.cz>
Date: Tue, 27 Aug 2024 14:21:09 +0200
From: Petr Mladek <pmladek@...e.com>
To: John Ogness <john.ogness@...utronix.de>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH printk v4 04/17] printk: nbcon: Add context to usable()
 and emit()

On Tue 2024-08-27 06:49:20, John Ogness wrote:
> The nbcon consoles will have two callbacks to be used for
> different contexts. In order to determine if an nbcon console
> is usable, console_is_usable() must know if it is a context
> that will need to use the optional write_atomic() callback.
> Also, nbcon_emit_next_record() must know which callback it
> needs to call.
> 
> Add an extra parameter @use_atomic to console_is_usable() and
> nbcon_emit_next_record() to specify this.
> 
> Since so far only the write_atomic() callback exists,
> @use_atomic is set to true for all call sites.
> 
> For legacy consoles, @use_atomic is not used.
> 
> Signed-off-by: John Ogness <john.ogness@...utronix.de>

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr